This article presents a study on how to prototype finger joint exoprosthesis using different CAD software and 3D printing techniques. The describes the measurement of morpho-anatomical parameters, creation model based these integration an articulation mechanism into patient's finger. also outlines process producing custom prosthesis by PA11 CF material, which has applications in various fields ...

A new prosthetic hand with a fixed thumb and four fingers actuated by Shape Memory Alloy (SMA) type artificial muscle has been developed in this paper. Different from typical geared motor, SMA actuator is lightweight and silent, however shows a little short stroke and small attracting force per each unit. In order to achieve enough output force and motion range of each finger, multiple SMA type...

An artificial elastic finger skin for robot fingers is developed for controlling grasp force when weight and frictional coefficient of the grasped object is unknown. The elastic finger skin has ridges at the surface to divide the stick/slip area. It also has a pair of tactile sensors embedded per one ridge same as finger of human. Surface of the whole finger is curved so that reaction force dis...

Humans obtain complex information using different tactile receptors in the skin of the finger. Artificial tactile sensors capable of detecting complex information can be realized by imitating certain characteristics of the human finger, such as the geometry of the finger and the location of the tactile receptors. In the present paper, we analyzed the strain distribution that occurs inside an el...

Artificial transcription factors based on modified zinc-finger DNA-binding domains have been shown to activate or repress the transcription of endogenous genes in multiple organisms. Advances in both the construction of novel zinc-finger proteins and our understanding of the characteristics of a productive regulatory site have fueled these achievements.

Cys2-His2 zinc finger proteins (ZFPs) are the largest group of transcription factors in higher metazoans. A complete characterization of these ZFPs and their associated target sequences is pivotal to fully annotate transcriptional regulatory networks in metazoan genomes. As a first step in this process, we have characterized the DNA-binding specificities of 129 zinc finger sets from Drosophila ...

In this paper, a new biomimetic tendon-driven actuation system for prosthetic and wearable robotic hand applications is presented. It is based on the combination of compliant tendon cables and one-way shape memory alloy (SMA) wires that form a set of agonist–antagonist artificial muscle pairs for the required flexion/extension or abduction/adduction of the finger joints. The performance of the ...

The wearable force feedback glove provides a promising solution for enhancing immersion during teleoperation. In this study, lightweight five-finger exoskeleton (EFFG) was designed, enabling driving detection and flexible feedback. This wireless prototype weighs only 278 g. features bionic structure optimized linkage length to ensure operator safety while providing extensive coverage of the fin...

Abstract: Data gloves are devices equipped with sensors that capture the movements of the hand of the user in order to select or manipulate objects in a virtual world. Data gloves were introduced three decades ago and since then have been used in many 3D interaction techniques. However, good data gloves are too expensive and only a few of them can perceive the full set of hand movements. In thi...